Difference between revisions of "ROWNUM()"

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=ROWNUM=
 
 
 
==Class==
 
Pseudo Columns
 
 
 
 
==Purpose==
 
==Purpose==
 
Return a number indicating the order in which the rows are selected from the table
 
Return a number indicating the order in which the rows are selected from the table

Revision as of 14:56, 29 October 2009

Purpose

Return a number indicating the order in which the rows are selected from the table


Syntax

ROWNUM


See Also

PSEUDO COLUMNS, INSERT, SELECT, UPDATE


Description

A Pseudo Column behaves like a table column, but is not actually stored in the table. You can select from Pseudo Columns, but they cannot be updated. Pseudo Columns provide extra information about a SELECT row set.

The ROWNUM Pseudo Column will return a number indicating the order in which the rows are selected from the table.


Example

// Display all overdue accounts with 15% commission in
// Sorted "name" and "paid date" order with the row number.
EXEC SQL
SELECT ROWNUM, name, address, balance, cost*1.15
FROM accounts
WHERE paid_date < date()
ORDER BY name, paid_date;


Products

Recital Database Server, Recital Mirage Server, Recital Terminal Developer